TDS around here is 129, I have used carbon>cation>anion and had no issues, except the cost. I get my tanks at Culligan Water, I pay about $1200 per year for exchanges and monthly rent and don't have access to the tanks from Dec.-April. I used to do a huge account, Cleveland Clinic Health Systems, I liked the larger tanks so I could work on and on without exchanging, I only needed to exchange twice a year.
Now that I don't do that much anymore I have been looking to change my system, not thinking I need RO, I could be wrong, I have never in over 15 years used RO, from Los Angeles to Tucson to Cleveland I have always had great results from DI only. I have the spring/fall rush of DI work, and I have summer and winter DI work, maybe about 20 hours a month of run time on my tanks? I am wondering if the Stage 2 is ideal for me, eliminate the rental cost I am currently paying and cut my outgoing expense by using what I need, when I need it? I wonder what type of month any of you guys have with your Unger system, if anyone has this unit? How many bags of resin per month/year do you go through and how much usage per?
Thanks for the conversation.